Wikipedia Abstract

The eastern mosquitofish, Gambusia holbrooki, is a species of freshwater fish, closely related to the western mosquitofish, Gambusia affinis. It is a member of the family Poeciliidae of order Cyprinodontiformes. It is native to the eastern and southern United States, and grows to 3.5 cm in length.

Invasive Species

Eastern mosquito fish, Gambusia holbrooki is a small, aggressive live-bearing fish that originates from the southern United States. It has been introduced worldwide as a mosquito-control agent. G. holbrooki have been implicated in damage to native fish, amphibian and invertebrate populations.